About this site
Since September 2002
Site manager information
Site name: TrekGEO
Administrator: NariNari
Address:
Record of updates
- July 12th, 2020
- The page of Sulphur of Noboribetsu-Jigoku Valley was added.
- July 5th, 2020
- The page of Rhodonite of Kanoiri Mine (Tochigi pref.) was added.
- June 28th, 2020
- The page of Allanite-(Ce)l of Ote (Gunma pref.) was added.
- June 14th, 2020
- The page of Opal of Sukayu hot spring (Aomori pref.) was added.
- June 7th, 2020
- The page of Calcareous sinter (Travertine) of Awara hot spring (Fukui pref.) was added.
- May 31st, 2020
- The page of Siliceous sinter of Sukayu hot spring (Aomori pref.) was added.
- May 24th, 2020
- The page of Rhodochrosite of Kanoiri Mine (Tochigi pref.) was added.
- May 17th, 2020
- The page of Mirabilite of Oya (Tochigi pref.) was added.
- May 3rd, 2020
- The page of Jarosite of Sukayu hotspring (Aomori pref.) was added.
- April 26th, 2020
- The page of Glendonite of Kodo was added.
- April 19th, 2020
- The page of Glendonite of Tateya was added.
- April 12th, 2020
- The page of Goethite of Sukayu hotspring (Aomori pref.) was added.
- April 5th, 2020
- The page of Glendonite of Kodo was added.
- March 29th, 2020
- The page of Axinite-(Mn) of Takanosu mine was added.
- March 22nd, 2020
- The page of Aragonite of Yoshikawa mine was added.
- March 15th, 2020
- The page of Accretionary lapilli of Iwadono hill in Saitama pref. was added.
- March 8th, 2020
- The page of Augite of Akima river in Gunma pref. was added.
- March 1st, 2020
- The page of Tremolite of Kasuga mine was added.
- February 23th, 2020
- The page of Diopside of Kasuga mine was added.
- February 16th, 2020
- The page of Actinolite of Kasuga mine was added.
- February 9th, 2020
- The page of Rumoiite and Shosanbetsuite were added in Mineral Database.
- February 2nd, 2020
- The page of liquid was added in Mineral Database.
- January 26th, 2020
- The page of amorphous was added in Mineral Database.
- January 19th, 2020
- The page of Tetrahedrite group was revised as the new nomenclature was published. The valid name of group members such as Tetrahedrite and Tennantite were changed. The Freibergite was changed to Kenoargentotetrahedrite-(Fe), and the name Freibergite is remained only as Freibergite series.
- January 12th, 2020
- The page of Sporadically disseminated was added in Mineral Database.
- January 1st, 2020
- A photograph of delta system made by a small scale analogue experiment was added.